Question:

17. The period of oscillation of a simple pendulum is T = 2π√ (L/g) Measured value of L is 20.0 cm known to 1 mm accuracy and time for 100 oscillations of the pendulum is found to be 90 s using a wrist watch of 1 s resolution. The accuracy in the determination of g is [2015]

Options :

  • a) 2%
  • b) 3%
  • c) 1%
  • d) 5%

Answer :

b) 3%

Answer Steps :

Solution :-

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